DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Kim, Sang-Youl | - |
dc.contributor.advisor | 김상율 | - |
dc.contributor.author | Han, Chul-Jong | - |
dc.contributor.author | 한철종 | - |
dc.date.accessioned | 2011-12-13T04:29:25Z | - |
dc.date.available | 2011-12-13T04:29:25Z | - |
dc.date.issued | 2002 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=177228&flag=dissertation | - |
dc.identifier.uri | http://hdl.handle.net/10203/31589 | - |
dc.description | 학위논문(박사) - 한국과학기술원 : 화학과, 2002.8, [ xiv, 164 p. ] | - |
dc.description.abstract | This thesis deals with synthesis of polyolefins having functional groups by early and late transition metal catalysts. Introducing functionalities into polyolefin has been considered as a challenging subject because of high oxophilicity of conventional transition metal catalysts and their polymerization behavior. To make functional polyolefins, the following attempts have been made; Pd-diimine catalyzed copolymerization of acetate monomers with ethylene, synthesis of polyolefin elastomer with supported Ni-diimine catalyst, synthesis of hydroxy-terminated polyethylene and its block copolymer with metallocene catalyst, and synthesis of ultra high molecular weight polyethylene by living polymerization of ethylene. Low oxophilicity of Pd-diimine catalyst enables direct copolymerization of functional monomers with ethylene. ω-Undecylenyl acetate monomer was synthesized and successfully copolymerized with ethylene. ω-Undecylenyl acetate comonomer prevents dimerization of living ethylene chain and polyethylene copolymer with narrow PDI (~1.05) was obtained. Novel polyimine ligand was synthesized by step polymerization of diamine and diketone monomer. Metallation of this polyimine ligand by Ni generates unique polymer-supported heterogeneous catalyst. Elastomeric linear-branch block polyethylene was synthesized by this catalyst. Selective chain transfer reaction was observed during the ethylene polymerization with bis-pentamethylcyclopentadienyl zirconium dichloride/MAO catalyst. β-Hydride elimination or chain transfer to aluminum occurred selectively depending upon the polymerization conditions like TMA content and temperature. Aluminum-terminated polyethylene was prepared by aluminum chain transfer reaction and converted to hydroxy-terminated polyethylene through oxidation of the aluminum-carbon bond. From this hydroxy terminated polyethylene, poly(ethylene-b-caprolactone) block copolymer was synthesized by stannous octoate initiated living polymerization of ε -... | eng |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | transition metal catalysts | - |
dc.subject | polyolefin | - |
dc.subject | polymerization | - |
dc.subject | 중합 | - |
dc.subject | 전이금속촉매 | - |
dc.subject | 폴리올레핀 | - |
dc.title | Synthesis of functionalized polyolefin with transition metal catalysts | - |
dc.title.alternative | 전이금속 촉매를 이용한 기능성 폴리올레핀의 합성 | - |
dc.type | Thesis(Ph.D) | - |
dc.identifier.CNRN | 177228/325007 | - |
dc.description.department | 한국과학기술원 : 화학과, | - |
dc.identifier.uid | 000975420 | - |
dc.contributor.localauthor | Kim, Sang-Youl | - |
dc.contributor.localauthor | 김상율 | - |
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